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TheH2O Standard

What's in Your Tap Water?

Enter your ZIP code and read your water utility's own test results: every contaminant it found, how each compares with health guidelines, and what fixes it. From the EWG Tap Water Database, for every US utility.

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Your utility's own test results, from the EWG Tap Water Database: what's in the water, how it compares with health guidelines, and what takes it out.

How to Read Your Report

  1. 1

    Your utility

    A ZIP maps to the public water system serving it. The report is that utility's own testing, as filed with the state and the EPA.

  2. 2

    Guidelines, not just limits

    Legal limits are old and many chemicals have none. EWG's health guidelines are the levels public health scientists consider safe; the report shows both.

  3. 3

    What takes it out

    Each contaminant lists the filter technologies that reduce it: carbon, reverse osmosis, ion exchange. We match those to the system we'd install.

Want the Answer for Your Home?

Tell us your ZIP code and a rep calls you within 5 minutes to answer every question. No pressure, no sales visit.